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Pate'nfid Jan. 8, 1889 H. O. A. II'ROST. MEANS FOR REGIPROGATING INKDISTRIBUTING ROLLS OF PRINTING MACHINES.

(No Model.)

N. PETERS Plwlvl-ilhogmpher. W:

UNITED STATES PATENT FFICE.

HENRY CHRISTIAN ABSTINENCE FFROST, OF SYDNEY, NEIV SOUTH IVALES.

MEANS FOR RECIPRdCATlNG INK-DISTRIBUTING ROLLS F PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 395,966, dated January8, 1889.

Application filed September 15, 1887. Serial No. 249,796. (N0 model.)Patented in Victoria February 4, 1887, No. 4,921; in New ZealandFebruary 27, 1887; in New South Wales April 6, 1887, No. 2,054, and inEngland April 25, 1887.

To all whom it may concern;

Be it known that I, HENRY CHRISTIAN AB- STINENCE FFROST, a subject ofthe Queen of lreat Britain, residing at Sydney, in the British Colony ofNewSouth \Vales, have invented certain new and useful Improvements inMeans for Reciprocating Ink Distributing Rolls of Printing-Machines,(for which I have obtained Letters of Registration in the British IOColony of New South Wales under date of April 6, 1887, No. 2,054, andLetters Patent in the colonies of Victoria, dated February 4, 1887, No.4,921, and in New Zealand and Great Britain, in which latter countries Ihave filed applications for Letters Patent on the 27th day of February,1887, and on the th day of April, 1887;) and I do hereby declare thatthe following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,forniing a part of this specification, in which Figure 1 is a top planview of so much of a printing-machine as is necessary to theillustration of my invention. Fig. 2 is a (letail sectional sideelevation, and Fig. 3 a detail end view illustrating the means forreciprocating the distributing-rolls; and Fig. at is a verticaltransverse section of part of the machine.

My invention relates to that class of printing-machines designed for theproduction of broad sheets in one, two, three, four, or more colors atone printing, and with the colors showing alternately or separate lines,or with the several lines partly colored, or with several colors inharmonized or radiant tints and blends. In these machines a separate setof inking apparatus is provided for every color required, theinking-rollers being kept clear of the form by special bearing orcarriage wheels running on rails affixed to the table, and wherever aparticular-colored ink is to be used a depression in the line of railsallows the bearing-wheels to drop and the inkingrollers to come incontact with the face of the type or lithographic stone.

I11 order to obtain a good distribution of the ink from the wavers tothe inking-rollers,

I construct one or more of my wavers for each color in such away that ithas end-play in its bearings, and on the end of the roller I affix aswash-plate that can be adjusted at varying angles. By means of a springor similar expedient the swash-plate is kept up against a fixed rollerattached firmly to the machine, and thus as the inking-roller and itsspindle revolve an endwise movement backward and forward is imparted toit, the amount of the travel being dependent on the inclination of theswash-plate. By printing first in a given number of colorssay four andleaving blank spaces, and by printing a second time with the same fouror other colors, a great many varieties of effects can be produced, andsecondary, tertiary, or radiant colors be shown.

The invention consists, essentially, in the means referred to forimparting endwise n10- tion to the swash-plates, substantially ashereinafter fully set forth, and specifically pointed out in the claim.

In order that my invention may be clearly understood, I will nowdescribe how I apply the same to a cylinder printing machine wherein thetable has a reciprocating motion; but it will be easily understood thatthe same effects could be attained where the table has a revolvingmotion by constructing cylindrical rails with elevations anddepressions.

A indicates the movable table of a printing-machine; I), the bed onwhich said table travels; (l, the inking-rollers, of which I have shownfour, Fig. 1, each intended for a different color; D, the intermediatewavers or distributingrollers, and E the first wavers, taking the inkfrom any suitable supply founts 0r troughs, which are supported from thecheeks F, Fig. 1, said cheeks being arranged on opposite sides of themachine.

To the table are secured rails G, provided with depressions K in theirupper faces, and L are the carriage or bearing wheels on the spindles ofthe inking-rollers O and traveling on said rails G.

On one end of the spindle of each intermediate roller or waver, D, ishinged a swashplate or disk, M, whose inclination may be adjusted bymeans of thumb-screws P, and

N are disks or rollers mounted on bearings of the fixed arms 0, securedto the framing of the machine.

On the spindle c of the wave-rs D, at the opposite end, is mounted acoiled spring, Q, or other like device, exerting its power on therollers l) to return them into their normal position when moved out oiit.

By the means just deseriln- -d a reciprocating motion is in'iparted tothe wavers I") in the direction of their longitudinal axis, the spindlesof said wavers beinfree to move in their bearings in the cheeks F of themachine.

The inking-rolls C have their hearings in vertical slots I'm-med in thecheeks olt' the frame, so asto allow them to rise and tall as the platetravels back and forth.

The method of operation is as follows: A form of type or lithographicstone is atfixed to the table of the machine in the ordinary way, andthe hiking apparatus, with as many sets of inking-rollers as there arecolors required to he 'priilted, takes the place of ordinary inkers,each ('olor-inkerhaving carriage or hearing wheels L on its spindle. Therails h: are set upon the tableat either side closely together betweenthe chase and that part:- of the outside frame which is ordinarily usedfor the eyliiider-bearel, and they are fasten ed in that position by theordinary side-stick and quoins; these rails (l being thus affixed underthe lines of the earriageavheels in such a way that each inker is kept,say on(, -ei e'hth of an inch, clear of the stone or type face by meansof the ca]-ri:'1ge-wheels on its spindle, except where a depression inthe rails allows the earriagwwheels to drop and the inker to come incontact with the type orstone, and the portions inked occur as thedepressed portions of the rails K have been previously regulated as toposition, frequency, and length. \Vhen the inker is on the type, it willrevolve from contact with the type form or stone and depressedrail-sections; but when it is clear of the type it revolves from thecont-act of carriagewheels on the raised rail-sections and causes theother rollers to revolve. The weight of the rails keeps the inkers incontact with the intermediate wavers. To effect an even distribut ion ofthe ink or color, the wavers D are made to travel to and fro in theirbearings by the action of spring Q (or similar device) forcing them oneway and the inclined swashplate M and roller N forcing them the otherway as they revolve, and the amplitude of this endwise motion can bevaried by altering the inclination of said swash'plate M.

Havin now fully described my invention, what I claim is In aprinting-press, the combination, with the inking-roll and theiilk-distributing roll, of devices for imparting endwise motion to thedistrihating-roll, which consists of a disk pi voted on the roller-journal to ad apt the same to be set to an inclination relatively to theaxis of the roll, an abutnlent bearing on the face of the disk, and aspring for returning said roll into its normal position when moved outof it, substantially as and for the purposes specified.

HENRY CllltlS'llAll ABSIINENOE FFROST.

\Vi tnesses:

FRED WALSH, Ilnxnv P. CILUER.

